1. Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, USA
2. Center for Bioengineering, University of California Santa Barbara, Santa Barbara, CA 93106, USA
3. Department of Electrical and Computer Engineering, University of California Santa Barbara, Santa Barbara, CA 93106, USA
4. Biomolecular Science and Engineering Graduate Program, University of California, Santa Barbara, Santa Barbara, California 93106, USA
5. Biological Engineering Graduate Program, University of California, Santa Barbara, Santa Barbara, California 93106, USA